dax: Fix incorrect argument passed to xas_set_err()

The argument passed to xas_set_err() to indicate an error should be negative.
Otherwise, xas_error() will return 0, and grab_mapping_entry() will return the
found entry instead of 'SIGBUS' when the entry is not in fact valid.
This would result in problems in subsequent code paths.

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Pankaj Gupta <[email protected]>
Signed-off-by: Hao Li <[email protected]>
Signed-off-by: Vishal Verma <[email protected]>

0 files changed, 0 insertions, 0 deletions